Equities Dividends Per Share (Details) - $ / shares	3 Months Ended
	Nov. 30, 2019	Nov. 30, 2018
8% Cumulative Redeemable [Member]
8% Cumulative Redeemable [Line Items]
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears	$ 1.00	$ 1.00
Class B, Series 1 Preferred Stock [Member]
8% Cumulative Redeemable [Line Items]
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears	0.98	0.98
Class B, Series 2 Preferred Stock [Member]
8% Cumulative Redeemable [Line Items]
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears	0.88	0.88
Class B, Series 3 Preferred Stock [Member]
8% Cumulative Redeemable [Line Items]
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears	0.84	0.84
Class B, Series 4 Preferred Stock [Member]
8% Cumulative Redeemable [Line Items]
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears	$ 0.94	$ 0.94